924d37118f
Registering the platform driver before module_init allows us to log oopses that happen during device probing. This requires changing module_init to postcore_initcall, and switching from platform_driver_probe to platform_driver_register because the platform device is not registered when the platform driver is registered; and because we use driver_register, now can't use create_bundle() (since it will try to register the same driver once again), so we have to switch to platform_device_register_data(). Also, some __init -> __devinit changes were needed. Overall, the registration logic is now much clearer, since we have only one driver registration point, and just an optional dummy device, which is created from the module parameters. Suggested-by: Colin Cross <ccross@android.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/*
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* Copyright (C) 2010 Marco Stornelli <marco.stornelli@gmail.com>
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* Copyright (C) 2011 Kees Cook <keescook@chromium.org>
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* Copyright (C) 2011 Google, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __LINUX_PSTORE_RAM_H__
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#define __LINUX_PSTORE_RAM_H__
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#include <linux/device.h>
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/types.h>
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#include <linux/init.h>
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struct persistent_ram_buffer;
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struct persistent_ram_zone {
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phys_addr_t paddr;
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size_t size;
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void *vaddr;
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struct persistent_ram_buffer *buffer;
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size_t buffer_size;
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/* ECC correction */
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bool ecc;
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char *par_buffer;
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char *par_header;
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struct rs_control *rs_decoder;
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int corrected_bytes;
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int bad_blocks;
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int ecc_block_size;
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int ecc_size;
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int ecc_symsize;
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int ecc_poly;
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char *old_log;
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size_t old_log_size;
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};
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struct persistent_ram_zone * __devinit persistent_ram_new(phys_addr_t start,
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size_t size,
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bool ecc);
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void persistent_ram_free(struct persistent_ram_zone *prz);
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void persistent_ram_zap(struct persistent_ram_zone *prz);
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int persistent_ram_write(struct persistent_ram_zone *prz, const void *s,
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unsigned int count);
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void persistent_ram_save_old(struct persistent_ram_zone *prz);
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size_t persistent_ram_old_size(struct persistent_ram_zone *prz);
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void *persistent_ram_old(struct persistent_ram_zone *prz);
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void persistent_ram_free_old(struct persistent_ram_zone *prz);
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ssize_t persistent_ram_ecc_string(struct persistent_ram_zone *prz,
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char *str, size_t len);
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/*
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* Ramoops platform data
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* @mem_size memory size for ramoops
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* @mem_address physical memory address to contain ramoops
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*/
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struct ramoops_platform_data {
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unsigned long mem_size;
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unsigned long mem_address;
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unsigned long record_size;
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unsigned long console_size;
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int dump_oops;
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bool ecc;
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};
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#endif
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